1. American Gypsum Company LLC
2. Beijing New Building Material Public Limited Company (BNBM Group)
3. Compagnie de Saint-Gobain S.A.
4. Etex Group
5. Everest Industries Limited
6. Georgia-Pacific LLC
7. Global Gypsum Board Co. LLC (Gypcore)
8. Holcim Ltd.
9. Jason Plasterboard (Jiaxing) Co. Ltd.
10. National Gypsum Services Company
11. Osman Group
12. PABCO Building Products LLC
13. USGKnauf
14. VANS Gypsum
15. VOLMA